TY  - BOOK
AU  - SUBRAMANYA,K / LAL, B. / AVADHANULU,M.N
TI  - A TEXTBOOK OF OPTICS
U1  - 621.362 
PY  - 1966/// R.P.2019
PB  - S.CHAND & COMPANY PVT LTD
KW  - A.P.S.C
N1  - RBPL78614/19-20
ER  -